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First I've heard of orange tube C8s from the 70s being junk. Mine's got diffraction limited optics and is no better or worse than the newer ones I've used at the observatory, and I don't think it is particularly special.
But if you're looking for help or parts refurbishing a classic - particularly if you want a 220V 50Hz motor, someone local with a lathe or a part you might want to copy, then you might have more luck here on IIS. Although I have found the Cloudy Nights folk to be a great resource, they are a long way away. Unfortunately since the OP is in Jo-berg it's not much help for him.
The awesome thing about the internet is; if you don't want to be involved, you don't have to!
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